Joseph boyle



J. BOYLE.

CUTTER HEAD.

(Mqdel No. 302,380 Patented July 22, 1884.-

UNITED STATES PATENT OFFICE. I

JOSEPH BOYLE, OF- OSWEGO, YORK.

CUTTER-HEAD.

SPECIFICATION forming part of Letters Patent No. 302,380, dated July22', 1884.

' Application filed February 16, 1884. (Model.)

To all whom it may concern:

Be it'known that I, J osnrn: BOYLE, of the city of O swego in the countyof Oswego and State of New York, have invented a new and usefulimprovement in an article of machinery known as a StickenI-Iead, ofwhich the following'is a specification.

My invention relates to an improvement in cutter-heads; and it consistsin the peculiar construction and combination of devices that will bemore fully set forth hereinafter, and particularly pointed out in theclaims.

The object of my invention is to provide a cutter-head that is adaptedto have the cutting-knives secured thereupon at such an angle that theirouter edges will be higher than their inner edges, whereby when thecutterhead is rotated the cutting-edges of the knives will graduallycome in contact with the wood, and thus shear the work smoothly andevenly.

I-Ieretofore the knives have been placed upon the cutter-head parallelwith the longitudinal axis thereof, in such a manner as to cut the woodat right angles. This manner of working the knives causes them to scrapethe wood instead of cleanly cutting it, and produces imperfect work.This defect it is the purpose of my invention to avoid.

In the accompanying drawings, Figurel is a perspective of a cutter-headthat embodies my invention, the clamping plate and screw being removedand a portion of the edge of one of the cutting-tools being broken away,so

as to disclose the separating-flange. Fig. 2is a side elevation of thesame with the cuttingtools and clamping plate and screw removed. Fig. 3is a vertical cross-section. Fig. 4 is a vertical longitudinal section.

A represents a cutter-head that is provided with peripheral seats A AThe seats A are of the ordinary construction, and are designed to securethe grooving-tools F. The seats A are located intermediate between theseats A, and have inclined bearing-faces A forming an obtuse angle, asshown. Between these inclined faces are formed flanges H, which serve toseparate the beading-knives B at their inner loweredges, their outerupper edges resting against bearing-lugs A Securingplates 0, that haveinclined bearing-faces O, are placed upon the upper sides of the bead-In order to clamp the beadingknives at their outer upper edges whencorrectly adjusted, I provide set-screws E, the heads of which bear uponthe outer edges of the beadingknives, as Shown.

If preferred, three sets of beading-knives may be employed and only onegrooving-knife, instead of two of each, as here shown, or any other suchvariation as experience gained in the operation of the cutter-head maysuggest.

Having thus described my invention, I-

claiml. A cutter-head having peripheral seats that are provided withbearing-faces for the reception of the cutting-knives, said bearingfaces extending at or nearly at a right angle to the longitudinal axisof the cutter-head, and being inclined transversely at an angle thereto,and flanges formed in the seats between the bearing-faces, so as toseparate the knives at their lower edges, substantially as described.

2. The combination of a cutter-head having peripheral seats that areprovided with Josnrn BOYLE.

Witnesses:

A. J. HOPKINS, DAVID 1 Lnsrnn.

